@@ -7145,7 +7145,7 @@ intel_atomic_commit_ready(struct i915_sw_fence *fence,
&to_i915(state->base.dev)->display.atomic_helper;
if (llist_add(&state->freed, &helper->free_list))
- schedule_work(&helper->free_work);
+ queue_work(i915_wq, &helper->free_work);
break;
}
}
@@ -435,7 +435,7 @@ void intel_display_driver_remove_noirq(struct drm_i915_private *i915)
intel_unregister_dsm_handler();
/* flush any delayed tasks or pending work */
- flush_scheduled_work();
+ flush_workqueue(i915_wq);
intel_hdcp_component_fini(i915);
@@ -1057,7 +1057,7 @@ void intel_dmc_init(struct drm_i915_private *i915)
i915->display.dmc.dmc = dmc;
drm_dbg_kms(&i915->drm, "Loading %s\n", dmc->fw_path);
- schedule_work(&dmc->work);
+ queue_work(i915_wq, &dmc->work);
return;
@@ -5251,7 +5251,7 @@ static void intel_dp_oob_hotplug_event(struct drm_connector *connector)
spin_lock_irq(&i915->irq_lock);
i915->display.hotplug.event_bits |= BIT(encoder->hpd_pin);
spin_unlock_irq(&i915->irq_lock);
- queue_delayed_work(system_wq, &i915->display.hotplug.hotplug_work, 0);
+ queue_delayed_work(i915_wq, &i915->display.hotplug.hotplug_work, 0);
}
static const struct drm_connector_funcs intel_dp_connector_funcs = {
@@ -1081,7 +1081,7 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
}
/* Schedule a Hotplug Uevent to userspace to start modeset */
- schedule_work(&intel_connector->modeset_retry_work);
+ queue_work(i915_wq, &intel_connector->modeset_retry_work);
}
/* Perform the link training on all LTTPRs and the DPRX on a link. */
@@ -111,7 +111,7 @@ static void intel_drrs_set_state(struct intel_crtc *crtc,
static void intel_drrs_schedule_work(struct intel_crtc *crtc)
{
- mod_delayed_work(system_wq, &crtc->drrs.work, msecs_to_jiffies(1000));
+ mod_delayed_work(i915_wq, &crtc->drrs.work, msecs_to_jiffies(1000));
}
static unsigned int intel_drrs_frontbuffer_bits(const struct intel_crtc_state *crtc_state)
@@ -1600,7 +1600,7 @@ static void __intel_fbc_handle_fifo_underrun_irq(struct intel_fbc *fbc)
if (READ_ONCE(fbc->underrun_detected))
return;
- schedule_work(&fbc->underrun_work);
+ queue_work(i915_wq, &fbc->underrun_work);
}
/**
@@ -689,7 +689,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
/* Don't block our own workqueue as this can
* be run in parallel with other i915.ko tasks.
*/
- schedule_work(&dev_priv->display.fbdev.suspend_work);
+ queue_work(i915_wq, &dev_priv->display.fbdev.suspend_work);
return;
}
}
@@ -1001,7 +1001,7 @@ static void intel_hdcp_update_value(struct intel_connector *connector,
hdcp->value = value;
if (update_property) {
drm_connector_get(&connector->base);
- schedule_work(&hdcp->prop_work);
+ queue_work(i915_wq, &hdcp->prop_work);
}
}
@@ -2095,11 +2095,11 @@ static void intel_hdcp_check_work(struct work_struct *work)
return;
if (!intel_hdcp2_check_link(connector))
- schedule_delayed_work(&hdcp->check_work,
- DRM_HDCP2_CHECK_PERIOD_MS);
+ queue_delayed_work(i915_wq, &hdcp->check_work,
+ DRM_HDCP2_CHECK_PERIOD_MS);
else if (!intel_hdcp_check_link(connector))
- schedule_delayed_work(&hdcp->check_work,
- DRM_HDCP_CHECK_PERIOD_MS);
+ queue_delayed_work(i915_wq, &hdcp->check_work,
+ DRM_HDCP_CHECK_PERIOD_MS);
}
static int i915_hdcp_component_bind(struct device *i915_kdev,
@@ -2398,7 +2398,7 @@ int intel_hdcp_enable(struct intel_atomic_state *state,
}
if (!ret) {
- schedule_delayed_work(&hdcp->check_work, check_link_interval);
+ queue_delayed_work(i915_wq, &hdcp->check_work, check_link_interval);
intel_hdcp_update_value(connector,
DRM_MODE_CONTENT_PROTECTION_ENABLED,
true);
@@ -2473,7 +2473,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
mutex_lock(&hdcp->mutex);
hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
drm_connector_get(&connector->base);
- schedule_work(&hdcp->prop_work);
+ queue_work(i915_wq, &hdcp->prop_work);
mutex_unlock(&hdcp->mutex);
}
@@ -2490,7 +2490,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
*/
if (!desired_and_not_enabled && !content_protection_type_changed) {
drm_connector_get(&connector->base);
- schedule_work(&hdcp->prop_work);
+ queue_work(i915_wq, &hdcp->prop_work);
}
}
@@ -2609,5 +2609,5 @@ void intel_hdcp_handle_cp_irq(struct intel_connector *connector)
atomic_inc(&connector->hdcp.cp_irq_count);
wake_up_all(&connector->hdcp.cp_irq_queue);
- schedule_delayed_work(&hdcp->check_work, 0);
+ queue_delayed_work(i915_wq, &hdcp->check_work, 0);
}
@@ -212,7 +212,7 @@ intel_hpd_irq_storm_switch_to_polling(struct drm_i915_private *dev_priv)
/* Enable polling and queue hotplug re-enabling. */
if (hpd_disabled) {
drm_kms_helper_poll_enable(&dev_priv->drm);
- mod_delayed_work(system_wq, &dev_priv->display.hotplug.reenable_work,
+ mod_delayed_work(i915_wq, &dev_priv->display.hotplug.reenable_work,
msecs_to_jiffies(HPD_STORM_REENABLE_DELAY));
}
}
@@ -339,7 +339,7 @@ static void i915_digport_work_func(struct work_struct *work)
spin_lock_irq(&dev_priv->irq_lock);
dev_priv->display.hotplug.event_bits |= old_bits;
spin_unlock_irq(&dev_priv->irq_lock);
- queue_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work, 0);
+ queue_delayed_work(i915_wq, &dev_priv->display.hotplug.hotplug_work, 0);
}
}
@@ -446,7 +446,7 @@ static void i915_hotplug_work_func(struct work_struct *work)
dev_priv->display.hotplug.retry_bits |= retry;
spin_unlock_irq(&dev_priv->irq_lock);
- mod_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work,
+ mod_delayed_work(i915_wq, &dev_priv->display.hotplug.hotplug_work,
msecs_to_jiffies(HPD_RETRY_DELAY));
}
}
@@ -577,7 +577,7 @@ void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
if (queue_dig)
queue_work(dev_priv->display.hotplug.dp_wq, &dev_priv->display.hotplug.dig_port_work);
if (queue_hp)
- queue_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work, 0);
+ queue_delayed_work(i915_wq, &dev_priv->display.hotplug.hotplug_work, 0);
}
/**
@@ -687,7 +687,7 @@ void intel_hpd_poll_enable(struct drm_i915_private *dev_priv)
* As well, there's no issue if we race here since we always reschedule
* this worker anyway
*/
- schedule_work(&dev_priv->display.hotplug.poll_init_work);
+ queue_work(i915_wq, &dev_priv->display.hotplug.poll_init_work);
}
/**
@@ -715,7 +715,7 @@ void intel_hpd_poll_disable(struct drm_i915_private *dev_priv)
return;
WRITE_ONCE(dev_priv->display.hotplug.poll_enabled, false);
- schedule_work(&dev_priv->display.hotplug.poll_init_work);
+ queue_work(i915_wq, &dev_priv->display.hotplug.poll_init_work);
}
void intel_hpd_init_early(struct drm_i915_private *i915)
@@ -635,7 +635,7 @@ static void asle_work(struct work_struct *work)
void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
{
if (dev_priv->display.opregion.asle)
- schedule_work(&dev_priv->display.opregion.asle_work);
+ queue_work(i915_wq, &dev_priv->display.opregion.asle_work);
}
#define ACPI_EV_DISPLAY_SWITCH (1<<0)
@@ -882,7 +882,7 @@ static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp)
* operations.
*/
delay = msecs_to_jiffies(intel_dp->pps.panel_power_cycle_delay * 5);
- schedule_delayed_work(&intel_dp->pps.panel_vdd_work, delay);
+ queue_delayed_work(i915_wq, &intel_dp->pps.panel_vdd_work, delay);
}
/*
@@ -341,7 +341,7 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir)
*/
intel_de_rmw(dev_priv, imr_reg, 0, psr_irq_psr_error_bit_get(intel_dp));
- schedule_work(&intel_dp->psr.work);
+ queue_work(i915_wq, &intel_dp->psr.work);
}
}
@@ -2453,7 +2453,7 @@ tgl_dc3co_flush_locked(struct intel_dp *intel_dp, unsigned int frontbuffer_bits,
return;
tgl_psr2_enable_dc3co(intel_dp);
- mod_delayed_work(system_wq, &intel_dp->psr.dc3co_work,
+ mod_delayed_work(i915_wq, &intel_dp->psr.dc3co_work,
intel_dp->psr.dc3co_exit_delay);
}
@@ -2493,7 +2493,7 @@ static void _psr_flush_handle(struct intel_dp *intel_dp)
psr_force_hw_tracking_exit(intel_dp);
if (!intel_dp->psr.active && !intel_dp->psr.busy_frontbuffer_bits)
- schedule_work(&intel_dp->psr.work);
+ queue_work(i915_wq, &intel_dp->psr.work);
}
}
@@ -2375,7 +2375,7 @@ static void execlists_capture(struct intel_engine_cs *engine)
goto err_rq;
INIT_WORK(&cap->work, execlists_capture_work);
- schedule_work(&cap->work);
+ queue_work(i915_wq, &cap->work);
return;
err_rq:
@@ -3680,7 +3680,7 @@ static void virtual_context_destroy(struct kref *kref)
* lock, we can delegate the free of the engine to an RCU worker.
*/
INIT_RCU_WORK(&ve->rcu, rcu_virtual_context_destroy);
- queue_rcu_work(system_wq, &ve->rcu);
+ queue_rcu_work(i915_wq, &ve->rcu);
}
static void virtual_engine_initial_hint(struct virtual_engine *ve)
@@ -90,8 +90,8 @@ static void pool_free_work(struct work_struct *wrk)
container_of(wrk, typeof(*pool), work.work);
if (pool_free_older_than(pool, HZ))
- schedule_delayed_work(&pool->work,
- round_jiffies_up_relative(HZ));
+ queue_delayed_work(i915_wq, &pool->work,
+ round_jiffies_up_relative(HZ));
}
static void pool_retire(struct i915_active *ref)
@@ -116,8 +116,8 @@ static void pool_retire(struct i915_active *ref)
WRITE_ONCE(node->age, jiffies ?: 1); /* 0 reserved for active nodes */
spin_unlock_irqrestore(&pool->lock, flags);
- schedule_delayed_work(&pool->work,
- round_jiffies_up_relative(HZ));
+ queue_delayed_work(i915_wq, &pool->work,
+ round_jiffies_up_relative(HZ));
}
void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node)
@@ -376,7 +376,7 @@ static void gen7_parity_error_irq_handler(struct intel_gt *gt, u32 iir)
if (iir & GT_RENDER_L3_PARITY_ERROR_INTERRUPT)
gt->i915->l3_parity.which_slice |= 1 << 0;
- schedule_work(>->i915->l3_parity.error_work);
+ queue_work(i915_wq, >->i915->l3_parity.error_work);
}
void gen6_gt_irq_handler(struct intel_gt *gt, u32 gt_iir)
@@ -116,7 +116,7 @@ void intel_engine_add_retire(struct intel_engine_cs *engine,
GEM_BUG_ON(intel_engine_is_virtual(engine));
if (add_retire(engine, tl))
- schedule_work(&engine->retire_work);
+ queue_work(i915_wq, &engine->retire_work);
}
void intel_engine_init_retire(struct intel_engine_cs *engine)
@@ -207,8 +207,8 @@ static void retire_work_handler(struct work_struct *work)
struct intel_gt *gt =
container_of(work, typeof(*gt), requests.retire_work.work);
- schedule_delayed_work(>->requests.retire_work,
- round_jiffies_up_relative(HZ));
+ queue_delayed_work(i915_wq, >->requests.retire_work,
+ round_jiffies_up_relative(HZ));
intel_gt_retire_requests(gt);
}
@@ -224,8 +224,8 @@ void intel_gt_park_requests(struct intel_gt *gt)
void intel_gt_unpark_requests(struct intel_gt *gt)
{
- schedule_delayed_work(>->requests.retire_work,
- round_jiffies_up_relative(HZ));
+ queue_delayed_work(i915_wq, >->requests.retire_work,
+ round_jiffies_up_relative(HZ));
}
void intel_gt_fini_requests(struct intel_gt *gt)
@@ -1625,7 +1625,7 @@ void __intel_init_wedge(struct intel_wedge_me *w,
w->name = name;
INIT_DELAYED_WORK_ONSTACK(&w->work, intel_wedge_me);
- schedule_delayed_work(&w->work, timeout);
+ queue_delayed_work(i915_wq, &w->work, timeout);
}
void __intel_fini_wedge(struct intel_wedge_me *w)
@@ -133,12 +133,12 @@ static void rps_timer(struct timer_list *t)
rps->cur_freq < rps->max_freq_softlimit) {
rps->pm_iir |= GEN6_PM_RP_UP_THRESHOLD;
rps->pm_interval = 1;
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
} else if (100 * busy < rps->power.down_threshold * dt &&
rps->cur_freq > rps->min_freq_softlimit) {
rps->pm_iir |= GEN6_PM_RP_DOWN_THRESHOLD;
rps->pm_interval = 1;
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
} else {
rps->last_adj = 0;
}
@@ -973,7 +973,7 @@ static int rps_set_boost_freq(struct intel_rps *rps, u32 val)
}
mutex_unlock(&rps->lock);
if (boost)
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
return 0;
}
@@ -1025,7 +1025,7 @@ void intel_rps_boost(struct i915_request *rq)
if (!atomic_fetch_inc(&slpc->num_waiters)) {
GT_TRACE(rps_to_gt(rps), "boost fence:%llx:%llx\n",
rq->fence.context, rq->fence.seqno);
- schedule_work(&slpc->boost_work);
+ queue_work(i915_wq, &slpc->boost_work);
}
return;
@@ -1041,7 +1041,7 @@ void intel_rps_boost(struct i915_request *rq)
rq->fence.context, rq->fence.seqno);
if (READ_ONCE(rps->cur_freq) < rps->boost_freq)
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
WRITE_ONCE(rps->boosts, rps->boosts + 1); /* debug only */
}
@@ -1900,7 +1900,7 @@ void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir)
gen6_gt_pm_mask_irq(gt, events);
rps->pm_iir |= events;
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
}
void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir)
@@ -1917,7 +1917,7 @@ void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir)
gen6_gt_pm_mask_irq(gt, events);
rps->pm_iir |= events;
- schedule_work(&rps->work);
+ queue_work(i915_wq, &rps->work);
spin_unlock(gt->irq_lock);
}
@@ -27,7 +27,7 @@ static void perf_begin(struct intel_gt *gt)
/* Boost gpufreq to max [waitboost] and keep it fixed */
atomic_inc(>->rps.num_waiters);
- schedule_work(>->rps.work);
+ queue_work(i915_wq, >->rps.work);
flush_work(>->rps.work);
}
@@ -931,4 +931,5 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define HAS_LMEMBAR_SMEM_STOLEN(i915) (!HAS_LMEM(i915) && \
GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
+extern struct workqueue_struct *i915_wq;
#endif
@@ -19,6 +19,8 @@
#include "i915_vma.h"
#include "i915_vma_resource.h"
+struct workqueue_struct *i915_wq;
+
static int i915_check_nomodeset(void)
{
bool use_kms = true;
@@ -79,6 +81,9 @@ static int __init i915_init(void)
{
int err, i;
+ i915_wq = alloc_workqueue("i915-global", 0, 0);
+ if (!i915_wq)
+ return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
err = init_funcs[i].init();
if (err < 0) {
@@ -86,6 +91,7 @@ static int __init i915_init(void)
if (init_funcs[i].exit)
init_funcs[i].exit();
}
+ destroy_workqueue(i915_wq);
return err;
} else if (err > 0) {
/*
@@ -113,6 +119,7 @@ static void __exit i915_exit(void)
if (init_funcs[i].exit)
init_funcs[i].exit();
}
+ destroy_workqueue(i915_wq);
}
module_init(i915_init);
@@ -290,7 +290,7 @@ static enum hrtimer_restart __rq_watchdog_expired(struct hrtimer *hrtimer)
if (!i915_request_completed(rq)) {
if (llist_add(&rq->watchdog.link, >->watchdog.list))
- schedule_work(>->watchdog.work);
+ queue_work(i915_wq, >->watchdog.work);
} else {
i915_request_put(rq);
}
@@ -9,6 +9,8 @@
#include "intel_runtime_pm.h"
#include "intel_wakeref.h"
+extern struct workqueue_struct *i915_wq;
+
static void rpm_get(struct intel_wakeref *wf)
{
wf->wakeref = intel_runtime_pm_get(wf->rpm);
@@ -74,7 +76,7 @@ void __intel_wakeref_put_last(struct intel_wakeref *wf, unsigned long flags)
/* Assume we are not in process context and so cannot sleep. */
if (flags & INTEL_WAKEREF_PUT_ASYNC || !mutex_trylock(&wf->mutex)) {
- mod_delayed_work(system_wq, &wf->work,
+ mod_delayed_work(i915_wq, &wf->work,
FIELD_GET(INTEL_WAKEREF_PUT_DELAY, flags));
return;
}
@@ -28,6 +28,8 @@
#include "../i915_selftest.h"
+extern struct workqueue_struct *i915_wq;
+
static int
fence_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
{
@@ -540,7 +542,7 @@ static int test_ipc(void *arg)
ipc.value = 0;
INIT_WORK_ONSTACK(&ipc.work, task_ipc);
- schedule_work(&ipc.work);
+ queue_work(i915_wq, &ipc.work);
wait_for_completion(&ipc.started);
Like commit c4f135d643823a86 ("workqueue: Wrap flush_workqueue() using a macro") says, flush_scheduled_work() is dangerous and will be forbidden. i915 became the last flush_scheduled_work() user, but developers cannot find time for auditing which work items does this flush_scheduled_work() need to wait. Therefore, for now let's start with blind/mechanical conversion within the whole drivers/gpu/drm/i915/ directory, based on an assumption that i915 does not need to wait for work items outside of this directory. Link: https://lkml.kernel.org/r/87sfeita1p.fsf@intel.com Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> --- Changes in v5: Renamed the module global workqueue from "i915" to "i915-global", suggested by Tvrtko Ursulin. Changes in v4: Refreshed using drm-tip.git. Changes in v3: Refreshed using drm-tip.git, for commit 40053823baad ("drm/i915/display: move modeset probe/remove functions to intel_display_driver.c") moved flush_scheduled_work() from intel_display.c to intel_display_driver.c . Please check the comment from Daniel Vetter at https://lkml.kernel.org/r/ZDuntOkUeh0Eve8a@phenom.ffwll.local . Changes in v2: Add missing alloc_workqueue() failure check. drivers/gpu/drm/i915/display/intel_display.c | 2 +- .../drm/i915/display/intel_display_driver.c | 2 +- drivers/gpu/drm/i915/display/intel_dmc.c | 2 +- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- .../drm/i915/display/intel_dp_link_training.c | 2 +- drivers/gpu/drm/i915/display/intel_drrs.c | 2 +- drivers/gpu/drm/i915/display/intel_fbc.c | 2 +- drivers/gpu/drm/i915/display/intel_fbdev.c | 2 +- drivers/gpu/drm/i915/display/intel_hdcp.c | 18 +++++++++--------- drivers/gpu/drm/i915/display/intel_hotplug.c | 12 ++++++------ drivers/gpu/drm/i915/display/intel_opregion.c | 2 +- drivers/gpu/drm/i915/display/intel_pps.c | 2 +- drivers/gpu/drm/i915/display/intel_psr.c | 6 +++--- .../drm/i915/gt/intel_execlists_submission.c | 4 ++-- drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c | 8 ++++---- drivers/gpu/drm/i915/gt/intel_gt_irq.c | 2 +- drivers/gpu/drm/i915/gt/intel_gt_requests.c | 10 +++++----- drivers/gpu/drm/i915/gt/intel_reset.c | 2 +- drivers/gpu/drm/i915/gt/intel_rps.c | 14 +++++++------- drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 2 +- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_module.c | 7 +++++++ drivers/gpu/drm/i915/i915_request.c | 2 +- drivers/gpu/drm/i915/intel_wakeref.c | 4 +++- drivers/gpu/drm/i915/selftests/i915_sw_fence.c | 4 +++- 25 files changed, 64 insertions(+), 52 deletions(-)